diff options
| -rw-r--r-- | drivers/net/sungem.c | 36 |
1 files changed, 14 insertions, 22 deletions
diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c index 3f67a42e8503..de399563a9db 100644 --- a/drivers/net/sungem.c +++ b/drivers/net/sungem.c @@ -2817,7 +2817,7 @@ static int gem_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) #if (!defined(__sparc__) && !defined(CONFIG_PPC_PMAC)) /* Fetch MAC address from vital product data of PCI ROM. */ -static void find_eth_addr_in_vpd(void __iomem *rom_base, int len, unsigned char *dev_addr) +static int find_eth_addr_in_vpd(void __iomem *rom_base, int len, unsigned char *dev_addr) { int this_offset; @@ -2838,35 +2838,27 @@ static void find_eth_addr_in_vpd(void __iomem *rom_base, int len, unsigned char for (i = 0; i < 6; i++) dev_addr[i] = readb(p + i); - break; + return 1; } + return 0; } static void get_gem_mac_nonobp(struct pci_dev *pdev, unsigned char *dev_addr) { - u32 rom_reg_orig; - void __iomem *p; - - if (pdev->resource[PCI_ROM_RESOURCE].parent == NULL) { - if (pci_assign_resource(pdev, PCI_ROM_RESOURCE) < 0) - goto use_random; - } + size_t size; + void __iomem *p = pci_map_rom(pdev, &size); - pci_read_config_dword(pdev, pdev->rom_base_reg, &rom_reg_orig); - pci_write_config_dword(pdev, pdev->rom_base_reg, - rom_reg_orig | PCI_ROM_ADDRESS_ENABLE); + if (p) { + int found; - p = ioremap(pci_resource_start(pdev, PCI_ROM_RESOURCE), (64 * 1024)); - if (p != NULL && readb(p) == 0x55 && readb(p + 1) == 0xaa) - find_eth_addr_in_vpd(p, (64 * 1024), dev_addr); - - if (p != NULL) - iounmap(p); - - pci_write_config_dword(pdev, pdev->rom_base_reg, rom_reg_orig); - return; + found = readb(p) == 0x55 && + readb(p + 1) == 0xaa && + find_eth_addr_in_vpd(p, (64 * 1024), dev_addr); + pci_unmap_rom(pdev, p); + if (found) + return; + } -use_random: /* Sun MAC prefix then 3 random bytes. */ dev_addr[0] = 0x08; dev_addr[1] = 0x00; |